R7824, R7847, R7848, R7849,R7851,R7861, R7886 AMPLIFIERS FOR 7800 SERIES RELAY MODULES
3 65-0109—8
Table 2. Flame Detection Systems.
aFlame Failure Response Time (FFRT) depends on selection of amplifier and 7800 SERIES Relay Module.
bR7824C is used only with the 24 Vdc RM7824 Relay Module and C7024E,F Flame Detectors.
cCircuitry tests all electronic components in flame detection system (amplifier and detect or) 12 times a minute during burner operation
and shuts down burner if detection system fails.
dUse only Honeywell part no. 38316 Photocell.
eCircuitry tests flame signal amplifier 12 times a minute during burner operation and shuts dow n burner if amplifier fails.
f200/220/240 Vac applications require a 120 Vac, 10 VA minimum stepdown transformer (not provided) to drive the shutter. Applies to
R7847C series 3 or greater; R7886A series 2 or greater; R7861 series 1 or greater. Fig. 2 shows flame detector wiring.
gUse C7027, C7035 and C7044 Flame Detectors only on burners that cycle on-off at least once every twe nty-four hours. Use C7012E,F
Flame Detector with R7847C Amplifier, C7061A Ultraviolet Detector with R7861A Amplifier or C7076A Flame Detector with R7886A
Amplifier as ultraviolet flame detection system for appliances with burners that remain o n continuously for twenty-four hours or longer.
hR7847A,B Amplifiers with 0.8/1 second FFRT should not be used with C7012A,C Solid State Ultraviolet De tectors.
iR7824C Series 2 and greater and R7847C Series 4 and greater check flame detector system when flame reaches 1.5 Vdc or at 4.5
seconds, whichever occurs first.
jOrder flame rod separately; see flame detector Instructions for holder.
Plug-in Flame Signal Amplifiers Applicable Flame Detectors
Type Color Self-Checking Model
Flame
Failure
Response
Time (sec)aFuel Type Models
Rectification Green Dymanic Self-
Check R7824Cb,c, i 3 Gas, oil,
coal
Ultraviolet (Purple
Peeper®)
C7024E,F
No R7847Ah0.8/1 or 2/3 Gas Rectifying Flame Rod
Holdersj
C7004, C7007, C7011
Complete Assemblies:
C7008, C7009, Q179
No R7847Ah0.8/1 or
2/3
Oil Rectifying Photocell C7003, C7010, C7013,
C7014d
No R7847Ah2/3 Gas, oil,
coal
Ultraviolet (Purple
Peeper®)
C7012A,C.
Dynamic Ampli-
Check® R7847Be,h0.8/1 or
2/3
Gas Rectif ying Flame Rod
Holdersb
C7004, C7007, C7011
Complete Assemblies:
C7008, C7009, Q179
Dynamic Ampli-
Check® R7847Be,h0.8/1 or
2/3
Oil Rectifying Photocell C7003, C7010, C7013,
C7014d
Dynamic Ampli-
Check® R7847Be,h2/3 Gas, oil,
coal
Ultraviolet (Purple
Peeper®)
C7012A,C
Dynamic Self-
Check R7847Cc,f, i 2/3 Gas, oil,
coal
Ultraviolet (Purple
Peeper®)
C7012E,F
Infrared Red No R7848A 2/3 Gas, oil,
coal
Infrared (Lead
Sulfide)
C7015
Dynamic Ampli-
Check® R7848Be3 Gas, oil,
coal
Infrared (Lead
Sulfide)
C7015
Ultraviolet Purple No R7849A 0.8/1 or
2/3
Gas, oil Ultraviolet
(Minipeeper) C7027, C7035, C7044g
Dynamic Ampli-
Check® R7849Bd0.8/1 or
2/3
Gas, oil Ultraviolet
(Minipeeper) C7027, C7035, C7044g
Dynamic Self-
Check R7861Ac,f 0.8/1 or
2/3
Gas, oil,
coal
Ultraviolet C7061
Blue Dynamic Self-
Check R7886Ac,f 2/3 Gas, oil,
coal
Ultraviolet (Adjustable
Sensitivity)
C7076
Optical White Dymanic Ampli-
Check®
R7851B 0.8/1 or 2/3 Gas, oil,
coal
Optical (UV, IR,
Visible Light)
C7927, C7935, C7915,
C7962
Dynamic Self-
Check R7851Cc2/3 Gas, oil,
coal
Optical (UV only) C7961